The heaviest rains in decades have slammed the Hawaiian Islands the past two months, leaving in their wake a fatal dam burst, a myriad of flooded homes, overwhelmed residents and frustrated tourists. The freak weather even included a rare tornado touching down last week on the island of Lanai, and a storm on Monday brought ice, hail and winds gusting up to 70 mph accompanied by minus-2-degree temperatures on the Haleakala summit on Maui.